Complete guide to Helicone authentication. Learn about API key types, permissions, regional variations, and alternative authentication methods.
POST
or using our gateway.
When creating a key you can choose whether or not you want to enable reads.
sk-
and keys with write
permissions will start with pk-
.eu-
this allows our edge workers to know which region to route the request to.
Helicone-Auth
not in the headerHelicone-Auth
. However, in some environments you do not have access to headers, and you only have the ability to change the base URL. In this case, you can actually embed the API key directly into the URL path.
You are now allowed to use a write only key within the URL path to authenticate your requests.
This is done by changing the base URL to https://gateway.helicone.ai/[HELICONE_API_KEY]/v1/
where [HELICONE_API_KEY]
is your Helicone API key.
This will work with any of our supported domains.